org.mozilla.javascript.Node.endCheck()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 JavaScript  
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本文整理了Java中org.mozilla.javascript.Node.endCheck()方法的一些代码示例，展示了Node.endCheck()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Node.endCheck()方法的具体详情如下：
包路径：org.mozilla.javascript.Node
类名称：Node
方法名：endCheck

Node.endCheck介绍

[英]endCheck() examines the body of a function, doing a basic reachability analysis and returns a combination of flags END_* flags that indicate how the function execution can terminate. These constitute only the pessimistic set of termination conditions. It is possible that at runtime certain code paths will never be actually taken. Hence this analysis will flag errors in cases where there may not be errors.
[中]

代码示例

代码示例来源：origin: rhino/js

  1. /**
  2.  * Checks that every return usage in a function body is consistent with the
  3.  * requirements of strict-mode.
  4.  * @return true if the function satisfies strict mode requirement.
  5.  */
  6. public boolean hasConsistentReturnUsage()
  7. {
  8.   int n = endCheck();
  9.   return (n & END_RETURNS_VALUE) == 0 ||
  10.       (n & (END_DROPS_OFF|END_RETURNS|END_YIELDS)) == 0;
  11. }

代码示例来源：origin: geogebra/geogebra

  1. /**
  2.  * Checks that every return usage in a function body is consistent with the
  3.  * requirements of strict-mode.
  4.  * @return true if the function satisfies strict mode requirement.
  5.  */
  6. public boolean hasConsistentReturnUsage()
  7. {
  8.   int n = endCheck();
  9.   return (n & END_RETURNS_VALUE) == 0 ||
  10.       (n & (END_DROPS_OFF|END_RETURNS|END_YIELDS)) == 0;
  11. }

代码示例来源：origin: io.apigee/rhino

  1. /**
  2.  * Checks that every return usage in a function body is consistent with the
  3.  * requirements of strict-mode.
  4.  * @return true if the function satisfies strict mode requirement.
  5.  */
  6. public boolean hasConsistentReturnUsage()
  7. {
  8.   int n = endCheck();
  9.   return (n & END_RETURNS_VALUE) == 0 ||
  10.       (n & (END_DROPS_OFF|END_RETURNS|END_YIELDS)) == 0;
  11. }

代码示例来源：origin: com.github.tntim96/rhino

  1. /**
  2.  * Checks that every return usage in a function body is consistent with the
  3.  * requirements of strict-mode.
  4.  * @return true if the function satisfies strict mode requirement.
  5.  */
  6. public boolean hasConsistentReturnUsage()
  7. {
  8.   int n = endCheck();
  9.   return (n & END_RETURNS_VALUE) == 0 ||
  10.       (n & (END_DROPS_OFF|END_RETURNS|END_YIELDS)) == 0;
  11. }

代码示例来源：origin: ro.isdc.wro4j/rhino

  1. /**
  2.  * Checks that every return usage in a function body is consistent with the
  3.  * requirements of strict-mode.
  4.  * @return true if the function satisfies strict mode requirement.
  5.  */
  6. public boolean hasConsistentReturnUsage()
  7. {
  8.   int n = endCheck();
  9.   return (n & END_RETURNS_VALUE) == 0 ||
  10.       (n & (END_DROPS_OFF|END_RETURNS|END_YIELDS)) == 0;
  11. }

代码示例来源：origin: com.sun.phobos/phobos-rhino

  1. /**
  2.  * Checks that every return usage in a function body is consistent with the
  3.  * requirements of strict-mode.
  4.  * @return true if the function satisfies strict mode requirement.
  5.  */
  6. public boolean hasConsistentReturnUsage()
  7. {
  8.   int n = endCheck();
  9.   return (n & END_RETURNS_VALUE) == 0 ||
  10.       (n & (END_DROPS_OFF|END_RETURNS)) == 0;
  11. }

代码示例来源：origin: rhino/js

  1. /**
  2.  * Returns in the then and else blocks must be consistent with each other.
  3.  * If there is no else block, then the return statement can fall through.
  4.  * @return logical OR of END_* flags
  5.  */
  6. private int endCheckIf()
  7. {
  8.   Node th, el;
  9.   int rv = END_UNREACHED;
  10.   th = next;
  11.   el = ((Jump)this).target;
  12.   rv = th.endCheck();
  13.   if (el != null)
  14.     rv |= el.endCheck();
  15.   else
  16.     rv |= END_DROPS_OFF;
  17.   return rv;
  18. }

代码示例来源：origin: rhino/js

  1. /**
  2.  * A general block of code is examined statement by statement. If any
  3.  * statement (even compound ones) returns in all branches, then subsequent
  4.  * statements are not examined.
  5.  * @return logical OR of END_* flags
  6.  */
  7. private int endCheckBlock()
  8. {
  9.   Node n;
  10.   int rv = END_DROPS_OFF;
  11.   // check each statment and if the statement can continue onto the next
  12.   // one, then check the next statement
  13.   for (n=first; ((rv & END_DROPS_OFF) != 0) && n != null; n = n.next)
  14.   {
  15.     rv &= ~END_DROPS_OFF;
  16.     rv |= n.endCheck();
  17.   }
  18.   return rv;
  19. }

代码示例来源：origin: ro.isdc.wro4j/rhino

  1. /**
  2.  * Returns in the then and else blocks must be consistent with each other.
  3.  * If there is no else block, then the return statement can fall through.
  4.  * @return logical OR of END_* flags
  5.  */
  6. private int endCheckIf()
  7. {
  8.   Node th, el;
  9.   int rv = END_UNREACHED;
  10.   th = next;
  11.   el = ((Jump)this).target;
  12.   rv = th.endCheck();
  13.   if (el != null)
  14.     rv |= el.endCheck();
  15.   else
  16.     rv |= END_DROPS_OFF;
  17.   return rv;
  18. }

代码示例来源：origin: com.sun.phobos/phobos-rhino

  1. /**
  2.  * Returns in the then and else blocks must be consistent with each other.
  3.  * If there is no else block, then the return statement can fall through.
  4.  * @return logical OR of END_* flags
  5.  */
  6. private int endCheckIf()
  7. {
  8.   Node th, el;
  9.   int rv = END_UNREACHED;
  10.   th = next;
  11.   el = ((Jump)this).target;
  12.   rv = th.endCheck();
  13.   if (el != null)
  14.     rv |= el.endCheck();
  15.   else
  16.     rv |= END_DROPS_OFF;
  17.   return rv;
  18. }

代码示例来源：origin: geogebra/geogebra

  1. /**
  2.  * Returns in the then and else blocks must be consistent with each other.
  3.  * If there is no else block, then the return statement can fall through.
  4.  * @return logical OR of END_* flags
  5.  */
  6. private int endCheckIf()
  7. {
  8.   Node th, el;
  9.   int rv = END_UNREACHED;
  10.   th = next;
  11.   el = ((Jump)this).target;
  12.   rv = th.endCheck();
  13.   if (el != null)
  14.     rv |= el.endCheck();
  15.   else
  16.     rv |= END_DROPS_OFF;
  17.   return rv;
  18. }

代码示例来源：origin: io.apigee/rhino

  1. /**
  2.  * Returns in the then and else blocks must be consistent with each other.
  3.  * If there is no else block, then the return statement can fall through.
  4.  * @return logical OR of END_* flags
  5.  */
  6. private int endCheckIf()
  7. {
  8.   Node th, el;
  9.   int rv = END_UNREACHED;
  10.   th = next;
  11.   el = ((Jump)this).target;
  12.   rv = th.endCheck();
  13.   if (el != null)
  14.     rv |= el.endCheck();
  15.   else
  16.     rv |= END_DROPS_OFF;
  17.   return rv;
  18. }

代码示例来源：origin: com.github.tntim96/rhino

  1. /**
  2.  * Returns in the then and else blocks must be consistent with each other.
  3.  * If there is no else block, then the return statement can fall through.
  4.  * @return logical OR of END_* flags
  5.  */
  6. private int endCheckIf()
  7. {
  8.   Node th, el;
  9.   int rv = END_UNREACHED;
  10.   th = next;
  11.   el = ((Jump)this).target;
  12.   rv = th.endCheck();
  13.   if (el != null)
  14.     rv |= el.endCheck();
  15.   else
  16.     rv |= END_DROPS_OFF;
  17.   return rv;
  18. }

代码示例来源：origin: geogebra/geogebra

  1. /**
  2.  * A general block of code is examined statement by statement. If any
  3.  * statement (even compound ones) returns in all branches, then subsequent
  4.  * statements are not examined.
  5.  * @return logical OR of END_* flags
  6.  */
  7. private int endCheckBlock()
  8. {
  9.   Node n;
  10.   int rv = END_DROPS_OFF;
  11.   // check each statment and if the statement can continue onto the next
  12.   // one, then check the next statement
  13.   for (n=first; ((rv & END_DROPS_OFF) != 0) && n != null; n = n.next)
  14.   {
  15.     rv &= ~END_DROPS_OFF;
  16.     rv |= n.endCheck();
  17.   }
  18.   return rv;
  19. }

代码示例来源：origin: rhino/js

  1. /**
  2.  * A labelled statement implies that there maybe a break to the label. The
  3.  * function processes the labelled statement and then checks the
  4.  * CONTROL_BLOCK_PROP property to see if there is ever a break to the
  5.  * particular label.
  6.  * @return logical OR of END_* flags
  7.  */
  8. private int endCheckLabel()
  9. {
  10.   int rv = END_UNREACHED;
  11.   rv = next.endCheck();
  12.   rv |= getIntProp(CONTROL_BLOCK_PROP, END_UNREACHED);
  13.   return rv;
  14. }

代码示例来源：origin: geogebra/geogebra

  1. /**
  2.  * A labelled statement implies that there maybe a break to the label. The
  3.  * function processes the labelled statement and then checks the
  4.  * CONTROL_BLOCK_PROP property to see if there is ever a break to the
  5.  * particular label.
  6.  * @return logical OR of END_* flags
  7.  */
  8. private int endCheckLabel()
  9. {
  10.   int rv = END_UNREACHED;
  11.   rv = next.endCheck();
  12.   rv |= getIntProp(CONTROL_BLOCK_PROP, END_UNREACHED);
  13.   return rv;
  14. }

代码示例来源：origin: ro.isdc.wro4j/rhino

  1. /**
  2.  * A labelled statement implies that there maybe a break to the label. The
  3.  * function processes the labelled statement and then checks the
  4.  * CONTROL_BLOCK_PROP property to see if there is ever a break to the
  5.  * particular label.
  6.  * @return logical OR of END_* flags
  7.  */
  8. private int endCheckLabel()
  9. {
  10.   int rv = END_UNREACHED;
  11.   rv = next.endCheck();
  12.   rv |= getIntProp(CONTROL_BLOCK_PROP, END_UNREACHED);
  13.   return rv;
  14. }

代码示例来源：origin: io.apigee/rhino

  1. /**
  2.  * A labelled statement implies that there maybe a break to the label. The
  3.  * function processes the labelled statement and then checks the
  4.  * CONTROL_BLOCK_PROP property to see if there is ever a break to the
  5.  * particular label.
  6.  * @return logical OR of END_* flags
  7.  */
  8. private int endCheckLabel()
  9. {
  10.   int rv = END_UNREACHED;
  11.   rv = next.endCheck();
  12.   rv |= getIntProp(CONTROL_BLOCK_PROP, END_UNREACHED);
  13.   return rv;
  14. }

代码示例来源：origin: com.sun.phobos/phobos-rhino

  1. /**
  2.  * A labelled statement implies that there maybe a break to the label. The
  3.  * function processes the labelled statement and then checks the
  4.  * CONTROL_BLOCK_PROP property to see if there is ever a break to the
  5.  * particular label.
  6.  * @return logical OR of END_* flags
  7.  */
  8. private int endCheckLabel()
  9. {
  10.   int rv = END_UNREACHED;
  11.   rv = next.endCheck();
  12.   rv |= getIntProp(CONTROL_BLOCK_PROP, END_UNREACHED);
  13.   return rv;
  14. }

代码示例来源：origin: com.github.tntim96/rhino

  1. /**
  2.  * A labelled statement implies that there maybe a break to the label. The
  3.  * function processes the labelled statement and then checks the
  4.  * CONTROL_BLOCK_PROP property to see if there is ever a break to the
  5.  * particular label.
  6.  * @return logical OR of END_* flags
  7.  */
  8. private int endCheckLabel()
  9. {
  10.   int rv = END_UNREACHED;
  11.   rv = next.endCheck();
  12.   rv |= getIntProp(CONTROL_BLOCK_PROP, END_UNREACHED);
  13.   return rv;
  14. }

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